I stayed in a static caravan on a picturesque site for a coupla months during my CPL. At first I loved it but the novelty wore off as autumn rolled in! You need the heating on 24/7 and when it rains it's hard to sleep. The wind tended to rock it too so all in all it became a nause. This time of year the eight legged friendies start bopping indoors and with a caravan it's magnified ten fold. Arachnophobics beware!
There isn't an awful lot of written study to do on the CPL besides memorising checklists, speeds and manouvres etc... but I found it easy to sit reading through stuff however without a table I'd have been struggling with the ATPL's in that caravan. Another thing about caravans is, that if you're like me, you can't blast the music too loud as you'll annoy everyone nearby but that's another story.....
In summary:
Short term - good fun.
Long term - character building.
VFE.
PS: Pack the vacuum cleaner and a torch.